$1
_ACEOF])
-AC_CACHE_CHECK(
- [whether the assembler is likely to work], [mdw_cv_gnuish_as],
- [AC_LANG_PUSH([CPPAS])
- AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
- .text
- .L\$_test = 23
-.macro mymac
- .L\$_test = .L\$_test + 1
-.endm
- .globl foo
- .extern bar
- mymac]])],
- [mdw_cv_gnuish_as=yes], [mdw_cv_gnuish_as=no])
- AC_LANG_POP([CPPAS])])
-AM_CONDITIONAL([GNUISH_AS], [test $mdw_cv_gnuish_as = yes])
-
dnl--------------------------------------------------------------------------
dnl Host-specific configuration.
-AC_MSG_CHECKING([CPU family and ABI])
-
dnl The table of CPU families and ABIs which we might support. Support is
dnl not uniform: each dispatched function might or might not have an
dnl implementation for any particular CPU/ABI combination.
[m4_undefine([catacomb_seen_abi/$3])])])
dnl Identify the current host.
-if test $mdw_cv_gnuish_as = no; then
- CPUFAM=nil ABI=nil
-else
- case $host_cpu,$host_os in
- m4_define([catacomb_CPU_CASE],
- [$1) CPUFAM=$2 ABI=$3 ;;
+case $host_cpu,$host_os in
+ m4_define([catacomb_CPU_CASE],
+ [$1) CPUFAM=$2 ABI=$3 ;;
])
- catacomb_CPU_FAMILIES([catacomb_CPU_CASE])
- *) CPUFAM=nil ABI=nil ;;
- esac
-fi
+ catacomb_CPU_FAMILIES([catacomb_CPU_CASE])
+ *) CPUFAM=nil ABI=nil ;;
+esac
+
+dnl Now check the assembler. We have target-specific requirements here, so
+dnl we couldn't do this any earlier.
+AC_CACHE_CHECK(
+ [whether the assembler is likely to work], [mdw_cv_gnuish_as],
+ [AC_LANG_PUSH([CPPAS])
+ AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
+ .text
+ .L\$_test = 23
+.macro mymac
+ .L\$_test = .L\$_test + 1
+.endm
+ .globl foo
+ .extern bar
+ mymac]])],
+ [mdw_cv_gnuish_as=yes], [mdw_cv_gnuish_as=no])
+ case $CPUFAM in
+ x86 | amd64)
+ AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
+ .text
+ .arch pentium4
+ .intel_syntax noprefix
+ .globl foo
+foo:
+ adcd var, 0
+ ret
+ .data
+var: .long 1
+ ]])],
+ [:], [mdw_cv_gnuish_as=no])
+ ;;
+ esac
+ AC_LANG_POP([CPPAS])])
+AM_CONDITIONAL([GNUISH_AS], [test $mdw_cv_gnuish_as = yes])
+if test $mdw_cv_gnuish_as = no; then CPUFAM=nil ABI=nil; fi
dnl A hairy macro used to set the `CPUFAM_...' and `ABI_...' variables. We
dnl basically need to do the same thing for the family and ABI, so it's worth
*) AC_MSG_ERROR([BUG: unexpected $1 \`$1']) ;;
esac])
+dnl Now that's out the way, we can explain what we're doing.
+AC_MSG_CHECKING([CPU family and ABI])
+
dnl Figure out the target CPU family and ABI.
catacomb_CPU_FAMILIES([catacomb_CLEAR_FLAGS])
catacomb_DEFINE_CPU_OR_ABI([CPUFAM], [2], [cpu],
dnl Memory locking support.
AC_CHECK_FUNCS([mlock])
+dnl See if we can find Valgrind's header files.
+AC_CHECK_HEADER([valgrind/memcheck.h],
+ AC_DEFINE([HAVE_VALGRIND_H], [1],
+ [Define if the Valgrind header files are available.])
+ [])
+
dnl Set the master libraries we need.
AC_SUBST([CATACOMB_LIBS])